Flexible roofing.



PATENTED DEC. 1907.

P. G. OVERBURY. FLEXIBLE ROOFING.

APPLICATION FILED APR. 23,1907- i 25 5052.25 J L? 55/5535 saga? UNITED STATES PATENT nines;

FREDERICK G. OVERBURY, OFv NEW YORK, N. Y., ASSIGN OR TO FLINTKOTE MANUFACTURING COMPANY, OF RUTHERFORD,. NEW JERSEY, A CORPORATION OF NEW JERSEY.

FLEXIBLE ROOFING.

Specification of Letters Patent.

Patented. Dec. 31, 1907.

Application filed April 23, 1907. Serial No. 369.831.

To all whowfit may concern: 4

Be it known that I, FREDERICK O. OVER- I BURY, of New York, in the county of New York and Stateof New York, have invented certain new and useful Improvements in Flexible Roofing, of which the following is a specification.

This invention relates to flexible water proof material used for covering roofs and other surfaces of buildings, and put on the market in elongated strips of indeterminate length, which are formed into a roll for convenience in storing and shipping, each strip having one edge formed with alternating proj ections and recesses. 'To expedite the manufacture and rolling or coiling of material of this kind, it has been proposed to longitudinally divide a long sheet orweb of the mate rial into a plurality of strips, each of the proper size for a single roofing strip, the strip eing wound into a coil while occupying the same relative positions to .each other that they occupy in the sheet or strip prior to the formation of the longitudinal cut or division therein. The resulting roll constitutes aroofing package composed of a plurality of roofing stri s which are -se arable from each other.- t has been foun convenient to subdivide the web or sheet. into strips and roll the same at practically one operation, the strip being originally formed-into a roll and drawn therefrom to an accumulating roll or drum upon which it is re-wound, the portion of the strip passing between the two rolls being subjected to the action of a cutter or cutters or any suitable sub-dividingmeans' adapted to form a longitudinal cut in the sheet. I I have found that, when the said out is continuous so that the sub-divisions of the sheet, when accumulated on the winding roll,

' are entirely detached from each other, difficulty is often experienced in properly controllingthe material during the winding op.-

eration. This difiiculty is due to the fact thatthe separated stri s cannot always be depended uponto win in perfect alinement with each other, one of the strips being liable to lag somewhatbehindthe other, or become laterally separated therefrom, the result being a buckling of one'of the strips to such an extent that it soon becomes impossible to continue the winding operation.

invention has for its object to obviate this difficulty and it is embodied in a web or sheet. of flexible roofing material, partially yards or twenty-four yards.

' c'ut longitudinally to form a plurality of strip edges of zig zag form, each having a plurality of alternating projections and recesses, the out being interrupted at suitable intervals to leave connections between the portions on which the said edges are formed, so that the individual strips, instead of being detached from each other when they are accumulated on the winding roll, are integrally connected in" such manner that they can be conveniently accumulated on a winding roll without lia bilit of change in their relative positions. Of the accompanying drawings, forming a part of this specification,-Figure 1 represents a view of a partially sub-divided web or sheet of roofing material embodying my invention, the sheet being unrolled. Fig. 2 represents a perspective viewshowing' the sheet formed into a roll. Fig.3 represents a' side view of a sheet partially sub-divided and having a greater number of interruptions in the longitudinal out than. the strip shown in Fig. 1. Fig. 4 represents a fragmentary view showing a modification.

The same letters of reference indicate the same parts in all the figures.

In carrying out'my invention, I form an interrupted cut a extending longitudinally ofa web or sheet of flexible roofing material, the said cut' sub dividing the sheet into a plurality of roofing strips 1) I), each of which is a nearly complete strip but is incomplete in the sense that it is joined at intervals to the other strip by portions 0 of the material of the sheet, these portions being the result of interruptions of the cut a. .The strips are therefore bound together in such manner that they can be wound upon a roll or man- .cut a may be formedby passing the sheet between a rotary cutter and a bed-ro1l, or by any other suitable means, and the interruptions of the out may be caused" by intermittently separatin the rotary cutter from the bed-roll. The sheets of roofing material are usually made in lengths of either twelve The connecting portions 0 are preferably located at the ,separated from each other.

ends of the sheet, as shown in the drawings. If desired and especially in the longer sheets, there may be an intermediate connecting portion a as shown in Fig. 3, or, if desired, there may be more than one intermediate connecting portion.

It will be seen that the connecting portions 0 enable a plurality of strips to be accumulated in a single roll and prevent the parts of the roll formed by the strips b from being When the sheet isunrolledfor use, the separation of the strips may be completed by extending the cut throu h the connecting portions 0. This may be' done by a hand-operated knife or otherwise. Fig. 4 shows a' portion of a sheet having, connecting portions interrupting the zigzag cut at every tongue.

In my pending application for patent for improvement in roofing packages and the method of making same, filed March 18, 1907, Serial No. 362,988, I have shown a roofing package composed of two completely severed or divided strips, each having zig zag inner edges. The present invention is distinguished from thatshown in the above-- mentioned application by the interruption of the cut to'leave connections between the portions on which the edges are formed. It will be seen that the general direction of the zig-zag cut is parallel with the edges of the sheet which is subdivided by the cut.

Having thus explained the nature of my in which it may be made, or all of the modes of its use, what I claim is:

1. A web or sheet of flexible roofing mate rial, partially cut longitudinally to form a plurality of strip-edges, having alternating projections and recesses, the cut bein interrupted to leave connections between t e portions on which said edges are formed, the general direction of the out being parallel with the ed es of the'shet.

2. A roo ng package comprising a sheet of flexible roofing material, wound into a roll,

and partially subdivided in a direction which. I

is substantially parallel with the edges of the sheet, to form edgesof a plurality of incom-- plete roofing strips, which edges have alternating projections and recesses, and are connected by undivided portions of the sheet,- the sheet being convertible into a plurality of operative roofing strips by the division of 'said connecting portions.

In testimony whereof I have affixed my signature, in presence of two witnesses. FREDERICK C. ()VERBURY Witnesses: I

CHAS. E. TOLHURST, WM. J. HINGERLAND. I 

